Hello all! I am currently setting up an old 4600 on my network. I have been unsuccessful in assigning it an IP and pinging through my cable modem/router. I think that setting up the fastEthernet module to pull an IP instead of assigning it one would cure this. If there is any info needed please let me know and I will post it.
Just run a command
"sh ip interface brief"
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Configure 'ip address dhcp' under fastethernet interface. The interface should get an IP if there's a DHCP server on that segment.